Delirium tremens (colloquially, the DTs, "the horrors", "the fear", or "the rats"; afflicted individuals referred to as "jitterbugs" in 1930s Harlem slang; literally, "shaking delirium" or "trembling madness" in Latin) is an acute episode of delirium that is usually caused by withdrawal or abstinence from benzodiazepines or barbituates (and other minor tranquilizers). When caused by alcohol, it occurs only in individuals with a history of constant, long-term alcohol consumption. Occurrence due to benzodiazepine or barbiturate withdrawal does not require as long a period of consistent intake of such drugs. Prior use of both tranquilizers and alcohol can compound the symptoms and, while extremely rare, is the most dangerous, especially if untreated.